Starting battery, control method thereof and vehicle

Abstract

The invention is applicable to the technical field of batteries, and provides a starting battery, a control method thereof and a vehicle, the starting battery comprises a standby charge capacity, and the control method of the starting battery comprises the following steps: acquiring working condition data of the starting battery; and closing a battery region corresponding to the standby charge capacity to enter a standby charge dormant state under the condition that the starting battery is determined to be in an abnormal discharge state according to the working condition data of the starting battery. And the closed standby charge capacity does not discharge in the abnormal discharge state, so that the standby charge capacity can be used as a protection margin of the starting battery in the abnormal discharge state, and the situation of over-discharge of the battery is reduced.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to a starting battery and a control method thereof, and a vehicle. Background Art

[0002] A starting battery, also known as a starting battery, is a battery specifically used to provide starting current for a vehicle's engine. Its main function is to provide an instantaneous high current when the engine is started, so that the engine can run smoothly and start the vehicle. The starting battery is usually located in the engine compartment and is directly connected to the engine.

[0003] However, since the starter battery may be over-discharged during use, it is easy to damage the starter battery, which affects the service life of the starter battery. Therefore, how to reduce the occurrence of over-discharge of the starter battery is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a starting battery and a control method thereof, which can effectively reduce the over-discharge of the starting battery, extend the battery life, and improve the safety of battery use.

[0005] The embodiment of the present application provides a control method for a starting battery, wherein the starting battery includes a reserve charge capacity, and the method includes:

[0006] Acquiring operating condition data of the starting battery;

[0007] When it is determined according to the working condition data of the starting battery that the starting battery is in an abnormal discharge state, the battery area corresponding to the backup charge capacity is closed to enter a backup charge dormant state.

[0008] In the present application, the battery capacity of the starting battery includes the backup charge capacity. When the starting battery is in an abnormal discharge state, the starting battery can enter a backup charge dormant state by closing the battery area corresponding to the backup charge capacity. The closed backup charge capacity will no longer discharge under the abnormal discharge state. Therefore, it can serve as a protective margin for the starting battery under the abnormal discharge state, thereby reducing the over-discharge of the battery.

[0009] In a possible implementation of the first aspect, when it is determined according to the operating condition data of the starting battery that the starting battery is in an abnormal discharge state, closing the battery area corresponding to the backup charge capacity to enter a backup charge dormant state includes:

[0010] Determine the battery cell corresponding to the standby charge capacity;

[0011] The charge and discharge circuit of the battery cell corresponding to the reserve charge capacity is closed.

[0012] In a possible implementation manner of the first aspect, after obtaining the operating condition data of the starting battery, the method further includes:

[0013] The battery cell corresponding to the standby charge capacity is dynamically adjusted according to the operating condition data of each battery cell of the starter battery.

[0014] In a possible implementation manner of the first aspect, the operating condition data of the battery cell is the number of charge and discharge cycles of each battery cell, and dynamically adjusting the battery cell corresponding to the standby charge capacity according to the operating condition data of each battery cell of the starting battery includes:

[0015] Determining the number of charge and discharge cycles of each of the battery cells;

[0016] The battery cell corresponding to the standby charge capacity is determined according to the number of charge and discharge cycles of each of the battery cells and the capacity of the standby charge capacity.

[0017] In a possible implementation manner of the first aspect, the operating condition data of the battery cell is a battery health coefficient of each battery cell, and dynamically adjusting the battery cell corresponding to the standby charge capacity according to the operating condition data of each battery cell of the starting battery includes:

[0018] Determining the battery health factor of each of the battery cells;

[0019] The battery cell corresponding to the standby charge capacity is determined according to the battery health coefficient of each of the battery cells and the capacity of the standby charge capacity.

[0020] In a possible implementation of the first aspect, when it is determined according to the operating condition data of the starting battery that the starting battery is in an abnormal discharge state, after the battery area corresponding to the backup charge capacity is closed to enter the backup charge dormant state, the method further includes:

[0021] When it is detected that the abnormal discharge state of the starter battery is released, the battery area corresponding to the backup charge capacity is turned on to release the backup charge dormant state of the starter battery.

[0022] In a second aspect, a starting battery is provided, comprising:

[0023] N battery cells, where N is a positive integer greater than 1; some of the battery cells are battery cells corresponding to the reserve charge capacity;

[0024] A charge and discharge control module is connected in the charge and discharge circuit of the starter battery, and is used to obtain the operating data of the starter battery; and when it is determined according to the operating data of the starter battery that the starter battery is in an abnormal discharge state, the battery area corresponding to the standby charge capacity is closed to enter a standby charge dormant state.

[0025] In an implementation of the second aspect, the starting battery further includes:

[0026] The circuit on-off control unit is connected to the charge-discharge control module and is used to control the on-off of the charge-discharge circuit.

[0027] In a third aspect, a charge and discharge control device for a starter battery is provided, comprising:

[0028] An acquisition module, used for acquiring the operating condition data of the starting battery;

[0029] The control module is used to close the battery area corresponding to the backup charge capacity to enter the backup charge dormant state when it is determined according to the working condition data of the starter battery that the starter battery is in an abnormal discharge state.

[0030] In a fourth aspect, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method as described in any one of the above-mentioned first aspects is implemented.

[0031] In a fifth aspect, a vehicle is provided, comprising a starting battery as described in any one of the second aspect or a charge and discharge control device as described in the third aspect, or an electronic device as described in the fourth aspect.

[0032] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method of any one of the above-mentioned first aspects is implemented.

[0033] In a seventh aspect, an embodiment of the present application provides a chip system, the chip system includes a processor, the processor is coupled to a memory, and the processor executes a computer program stored in the memory to implement any of the above methods of the first aspect. The chip system can be a single chip, or a chip module composed of multiple chips.

[0034] In an eighth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on an electronic device, the electronic device executes any one of the above methods in the first aspect.

[0035] It can be understood that the beneficial effects of the second to eighth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 This is a schematic diagram of the structure of a starting battery provided in one embodiment of the present application;

[0038] Figure 2 is a schematic structural diagram of another starting battery provided in an embodiment of the present application;

[0039] Figure 3 This is a schematic diagram of battery capacity division of a starter battery provided in an embodiment of the present application;

[0040] Figure 4 It is a schematic diagram of battery capacity division of another starter battery provided in an embodiment of the present application;

[0041] Figure 5 It is a schematic diagram of the implementation flow of a method for controlling a starter battery provided in an embodiment of the present application;

[0042] Figure 6 It is a schematic diagram of the implementation flow of another method for controlling a starter battery provided in an embodiment of the present application;

[0043] Figure 7 is a schematic structural diagram of a control device for a starter battery provided in an embodiment of the present application;

[0044] Figure 8 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0046] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0047] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0048] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0049] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0050] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0051] A starting battery, also known as a starting battery, is a battery specifically used to provide starting current for a vehicle's engine. Its main function is to provide an instantaneous high current when the engine is started, so that the engine can run smoothly and start the vehicle. The starting battery is usually located in the engine compartment and is directly connected to the engine.

[0052] Specifically, the starting battery stores electrical energy through chemical reactions. When the battery is fully charged, it can store a large amount of electrical energy. When the engine needs to be started, the battery quickly releases the stored electrical energy and provides enough current to run the engine. After the engine is started, the starting battery is also charged.

[0053] However, since the starter battery may be over-discharged during use, the starter battery may be easily damaged, which affects the service life of the starter battery.

[0054] Based on this, an embodiment of the present application provides a starting battery and a control method thereof, wherein the battery capacity of the starting battery includes a backup charge capacity. When the starting battery is in an abnormal discharge state, the starting battery can enter a backup charge dormant state by closing the battery area corresponding to the backup charge capacity. The closed backup charge capacity will no longer discharge under the abnormal discharge state, and can therefore serve as a protective margin for the starting battery under the abnormal discharge state, thereby reducing the over-discharge of the battery.

[0055] The control method of the starting battery in the embodiment of the present application is described below with reference to the accompanying drawings.

[0056] The control method of the starting battery provided in the embodiment of the present application can be applied to a vehicle, a starting battery in a vehicle, a controller of the starting battery, etc.

[0057] See also Figure 1 , Figure 1 A schematic diagram of the internal circuit structure of a starting battery is shown. Figure 1 As shown, the starting battery 10 may include a plurality of cells, and the plurality of cells are connected in series. For example, Figure 1 The starter battery 10 further includes a charge and discharge control module 11, wherein the charge and discharge control module 11 can be specifically connected in series in the charge and discharge circuit of the starter battery 10, that is, it can be connected to the internal circuit of the positive output port P+ and the negative output port P- of the starter battery 10. The charge and discharge control module 11 can obtain the current working condition requirements, determine the target capacity area according to the current working condition requirements, and control the target capacity area to perform the charge and discharge operations corresponding to the current working condition requirements. Some of the multiple cells are cells corresponding to the standby charge capacity (such as Figure 1 The battery cell in the dashed box 101).

[0058] like Figure 2 As shown, the starting battery 10 may further include a circuit on-off control unit 12 , wherein the circuit on-off control unit 12 may include a charging circuit control unit and a discharging circuit control unit.

[0059] In specific applications, such as Figure 2 As shown, the charging loop control unit may include a first MOS transistor P1 and a MOS transistor driving circuit 121a, and the discharging loop control unit may include a second MOS transistor P2 and a MOS transistor driving circuit 121a.

[0060] It can be understood that the charging circuit control unit can control the on and off of the charging circuit, and the discharging circuit control unit can control the channel of the discharging circuit.

[0061] Among them, the MOS tube driving circuit can be configured according to the model and type of the MOS tube, and the first MOS tube and the second MOS tube can be selected according to actual application requirements, and this application does not make any specific restrictions on this.

[0062] Figure 2 Only NMOS tubes are taken as an example. Of course, the switching devices selected in the above-mentioned charging circuit control unit and the above-mentioned discharging circuit control unit can also select other types of switching devices to realize the on-off control of the charging and discharging circuits. For example, devices such as CNC switches can be selected. The embodiments of the present application do not make the only limitation.

[0063] It can be understood that the above-mentioned charge and discharge control module 11 can be specifically an integrated circuit chip, for example, it can be a general-purpose processor, it can be a field programmable gate array (FPGA), it can also be an application specific integrated circuit (ASIC), it can also be a system on chip (SoC), it can also be a network processor (NP), it can also be a digital signal processing circuit (DSP), it can also be a microcontroller (MCU), it can also be a programmable controller (PLD), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components and other integrated units (neural-network processing unit, NPU) and graphics processing unit (graphics processing unit, GPU), and can also include an application processor (AP), a modem processor, an image signal processor (DSP), and / or a baseband processor, etc., without specific limitation. The above-mentioned charge and discharge control module 11 can close the battery area corresponding to the backup charge capacity when the starting battery is in an abnormal discharge state, that is, close the charge and discharge circuit of the battery cell corresponding to the backup charge capacity, so that the starting battery is in a backup charge dormant state, that is, the battery cell corresponding to the backup charge capacity cannot be used, so that the power of the starting battery will not be completely exhausted, that is, the occurrence of over-discharge can be reduced.

[0064] For example, see Figure 3 , Figure 3FIG. 4 shows a schematic diagram of the battery capacity division result of the starting battery provided in an embodiment of the present application, such as Figure 3 As shown, the battery capacity of the starter battery provided in the embodiment of the present application can be divided into a first capacity and a standby charge capacity. The first capacity is the battery capacity of the starter battery excluding the standby charge capacity, and the standby charge capacity is the battery capacity required for achieving battery remaining capacity.

[0065] It can be understood that the range of the above reserve charge capacity can be determined based on the user's selection, that is, the user can select the regional range of the reserve charge capacity.

[0066] From the above, it can be seen that the starting battery provided in the embodiment of the present application, when the starting battery is in an abnormal discharge state, closes the battery area corresponding to the standby charge capacity, that is, closes the charge and discharge circuit of the battery cell corresponding to the standby charge capacity, so that the starting battery is in a standby charge dormant state, that is, the battery cell corresponding to the standby charge capacity cannot be used, so that the power of the starting battery will not be completely exhausted, effectively reducing the occurrence of over-discharge, improving the safety of battery use, and extending the battery life.

[0067] Among them, in order to make the capacity of the starting battery more suitable for the working conditions and improve the efficiency and safety of battery use, the battery capacity of the starting battery can be divided into capacity areas corresponding to each working condition according to the working conditions, and the standby charge capacity can be retained as a safe remaining capacity.

[0068] For example, see Figure 4 , Figure 4 FIG. 4 shows a schematic diagram of a division result provided by another embodiment of the present application. Figure 4 As shown, the battery capacity of the starting battery provided in the embodiment of the present application is divided into normal use capacity, upper life retention capacity, lower life retention capacity, and standby charge capacity.

[0069] In specific applications, the conventional usage capacity can be the battery capacity corresponding to the normal operating conditions of the battery, the upper life retention capacity can be the capacity area corresponding to the emergency high-current charging condition (when the battery charging current is greater than the preset current threshold, for example, when the starting battery needs to absorb a large amount of energy), and the lower life retention capacity can be the capacity area corresponding to the non-cutoff output task condition (that is, when performing a non-cutoff output task).

[0070] It can be understood that the above-mentioned non-interruptible output task means that the output cannot be interrupted, that is, the discharge process of the starter battery cannot be interrupted and needs to be continuously discharged.

[0071] In the embodiment of the present application, the use of the above-mentioned conventional usage capacity will not aggravate the attenuation of the battery life, while the use of the upper life retention capacity and the lower life retention capacity may affect the battery life.

[0072] In a specific application, the calculation control unit 112 can determine the current operating condition requirement of the starting battery according to the operating condition parameters of the starting battery. The operating condition parameters can include but are not limited to the charging current during the charging process, the discharging current during the discharging process, the charging and discharging time, the battery power execution task type, etc.

[0073] In a specific application, the types of tasks to be executed include, but are not limited to, emergency discharging tasks, emergency charging tasks, regular charging tasks, regular discharging tasks, non-cutoff output tasks, and overcurrent charging tasks.

[0074] In the embodiment of the present application, different types of tasks to be performed can be determined based on the type of instructions issued by the vehicle controller. It is understandable that the vehicle controller can determine the tasks that the starter battery needs to perform based on the vehicle's operating conditions, user's operating instructions, and other information, and then output corresponding instructions to the charge and discharge control module 11 of the starter battery, and the charge and discharge control module 11 controls the starter battery to perform corresponding operations.

[0075] In a specific application, different operation instructions may carry different instruction identifiers. After receiving the operation instruction from the vehicle controller, the charge and discharge control module may determine the execution task type corresponding to the operation instruction based on the instruction identifier.

[0076] Among them, the vehicle controller can be a body control module (BCM). It is understandable that the body controller can also be called a body computer, which also refers to an electronic control unit (ECU) used to control the body electrical system in automotive engineering. Common functions of the body controller include controlling electric windows, electric rearview mirrors, air conditioning, headlights, turn signals, anti-theft locking system, central locking, defrosting device, etc. The body controller can be connected to other vehicle-mounted ECUs through a bus.

[0077] In an embodiment of the present application, the charge and discharge control module 11 of the starter battery can obtain the charge and discharge current during the charge and discharge process, and then determine the current working condition requirement of the starter battery according to the charge and discharge current.

[0078] In specific applications, the charge and discharge control module can determine whether the current state is an emergency high-current charging condition based on the size of the charging current, and can also determine whether the current state is a non-interruptible output task condition based on the size of the discharge current and the discharge duration.

[0079] In some embodiments, the charge and discharge control module 11 can comprehensively determine the current working condition requirement of the starter battery according to information such as the charge and discharge current during the charge and discharge process and the type of task to be performed.

[0080] Exemplarily, assuming that the charge and discharge control module 11 determines that the type of task currently being executed is an emergency charging task and the charging current exceeds the preset current threshold, it can be determined that the current operating condition requirement is an emergency high-current charging condition. According to the correspondence between the operating condition requirement and the capacity area (ie, the first correspondence), the target capacity area can be determined to be the upper life retention capacity.

[0081] As another example, assuming that the charge and discharge control module 11 determines that the type of task currently being executed is a non-cutoff output task, and that it is in a discharging state at this time, it can be determined that the current operating condition requirement of the starting battery is a non-cutoff output task condition, and based on the first correspondence between the operating condition requirement and the capacity area, it can be determined that the target capacity area is the lower life retention capacity.

[0082] It is understandable that the above-mentioned capacity area division of the battery capacity is only an example, and the number of capacity areas of the battery capacity can be determined according to various working conditions in the actual application process. Figure 3 It only shows a possible implementation method. In actual application, the capacity area of ​​the battery capacity can also be divided according to the working conditions. For example, it can be divided into conventional charging capacity, conventional discharging capacity, upper life retention capacity, lower life retention capacity and standby charge capacity, etc.

[0083] It can also be understood that when the starting battery responds to different working conditions, the corresponding charging and discharging operations are performed in the corresponding capacity areas, so that the battery state can be maintained, that is, the power in other capacity areas will not be affected, thereby reducing the overcharging and over-discharging of the starting battery.

[0084] During application, the above-mentioned standby state of charge may also correspond to a capacity region corresponding to a condition where it is not suitable to cut off the output (i.e., executing a task where it is not suitable to cut off the output) or an emergency starting condition.

[0085] It can be seen from the above that the battery capacity of the starting battery provided in the embodiment of the present application is divided into multiple capacity areas to cope with different working conditions. The battery state can be maintained under different working conditions, thereby reducing the occurrence of overcharging and over-discharging of the battery and extending the battery life.

[0086] In one embodiment of the present application, after detecting that the abnormal discharge state of the starter battery is released, the charge and discharge control module 11 may further turn on the battery area corresponding to the standby charge capacity to release the standby charge dormant state of the starter battery.

[0087] In a specific application, the charge and discharge control module 11 of the starter battery may first determine the battery area corresponding to the reserve charge capacity, and then conduct the charge and discharge paths of the cells corresponding to the battery area, thereby conducting the battery area corresponding to the reserve charge capacity.

[0088] It can be seen from the above that the starting battery provided in the embodiment of the present application releases the standby charge dormant state of the starting battery after the abnormal discharge state of the starting battery is released, so that the standby charge capacity can be used normally, which can effectively improve the capacity of the battery.

[0089] It can be understood that the above is only an exemplary description of the starting battery provided in the embodiment of the present application. The starting battery in the present application may also include other modules or units, for example, it may also include a communication module, through which the starting battery can communicate with an external controller to receive operating instructions or transmit battery information. The communication module may include a communication interface, and communicates with the external controller through the communication interface. The type of communication interface can be designed according to actual application requirements, and the present application does not impose the sole limitation on this. For example, it may also include a humidity control module and other related modules for monitoring and regulating the humidity of the battery working environment.

[0090] The starting battery provided in the embodiment of the present application is introduced above. The electrical control method of the starting battery provided in the embodiment of the present application is described below with reference to the accompanying drawings.

[0091] See also Figure 5 , Figure 5 FIG. 1 shows a schematic diagram of an implementation flow of a method for controlling a starter battery provided in an embodiment of the present application, such as Figure 5 As shown, the above method may specifically include the following steps:

[0092] In S11 , the operating condition data of the starting battery is acquired.

[0093] In a specific application, the operating condition data of the starting battery may include the battery temperature, the battery discharge voltage, the battery discharge current, the battery remaining power, the battery discharge time, the balance parameters of each cell in the battery, etc.

[0094] In one embodiment of the present application, the operating condition data of the starter battery can be collected by a vehicle-mounted data collection terminal or by a battery management unit of the starter battery. The vehicle-mounted data collection terminal can be installed in the vehicle, and can collect all relevant data involved in the operation of the vehicle-mounted battery, such as the battery temperature, battery charging voltage, battery discharging voltage, etc. of the vehicle-mounted battery during use.

[0095] Among them, the above-mentioned vehicle-mounted data acquisition terminal can be a body control module (BCM). It can be understood that the body control module can also be called a body computer, and in automotive engineering it also refers to an electronic control unit (ECU) used to control the body electrical system. Common functions of the body controller include controlling electric windows, electric rearview mirrors, air conditioning, headlights, turn signals, anti-theft locking systems, central locking, defrosting devices, etc. The body controller can be connected to other vehicle-mounted ECUs through a bus.

[0096] In some embodiments, the vehicle-mounted data acquisition terminal may also be a battery management system (BMS), and the battery operating data is collected through the BMS.

[0097] It can be understood that the vehicle-mounted data acquisition terminal in the embodiment of the present application can monitor the data on the communication bus between the ECU and the BMS of the vehicle body or between the BCM and the BMS in real time, and then obtain the operating condition data of the starting battery.

[0098] In S12, when it is determined according to the operating condition data of the starting battery that the starting battery is in an abnormal discharge state, the battery area corresponding to the backup charge capacity is closed to enter a backup charge dormant state.

[0099] In specific applications, the charge and discharge control module of the starter battery can detect the charge and discharge status of the starter battery according to the operating condition data of the starter battery, and then determine whether the starter battery is in an abnormal discharge state. If it is determined that the starter battery is in an abnormal discharge state, the battery area corresponding to the standby charge capacity can be controlled to be closed, so that the starter battery enters a standby charge dormant state.

[0100] In a specific application, the above-mentioned detection of whether the starting battery is in an abnormal discharge state based on the operating condition data can be to detect whether the maximum discharge current of the starting battery exceeds the maximum discharge threshold, or whether the discharge duration exceeds the duration threshold, or the remaining power of the starting battery after discharge is less than a preset power threshold, etc.

[0101] If the maximum value of the discharge current exceeds the maximum discharge threshold, or the discharge duration exceeds the duration threshold, or the remaining power of the starter battery after discharge is less than a preset power threshold, it can be determined that the starter battery is in an abnormal discharge state.

[0102] In one embodiment of the present application, if the starting battery is in an unconnected state, the starting battery can also be controlled to enter a standby charge dormant state, that is, when the starting battery is not connected for use, the starting battery can be controlled to enter a standby charge dormant state, so that the starting battery will not suffer from serious power loss even if it is stored for a long time.

[0103] It is understandable that the above-mentioned maximum discharge threshold, duration threshold and preset power threshold can be set according to actual applications, and this application does not impose specific restrictions on this.

[0104] In an embodiment of the present application, shutting down the battery area corresponding to the standby charge capacity to enter the standby charge dormant state may include the following steps:

[0105] Determine the battery cell corresponding to the standby charge capacity;

[0106] The charge and discharge circuit of the battery cell corresponding to the reserve charge capacity is closed.

[0107] In a specific application, some cells can be divided from the starting battery according to the size of the standby charge capacity as cells corresponding to the standby charge capacity. After the division is completed, it can be known which cells are cells corresponding to the standby charge capacity and which cells are cells corresponding to the first capacity.

[0108] It should be noted that a battery cell, i.e. a battery cell, is a battery cell, which is a basic unit device that directly converts chemical energy into electrical energy, and usually includes: electrodes, diaphragms, electrolytes, casings and terminals.

[0109] The above-mentioned starting battery may include a plurality of battery cells, and the plurality of battery cells may be connected in series and parallel to form a battery module.

[0110] It should be noted that the capacity of the above-mentioned standby charge capacity can be set according to user needs or determined according to empirical values, and this application does not impose any specific restrictions on this.

[0111] In a specific application, the above-mentioned closing of the charge and discharge circuit of the battery cell corresponding to the standby charge capacity may specifically be achieved by controlling a switch controller or a switch tube of the charge and discharge circuit of the battery cell to disconnect the charge and discharge circuit of the battery cell.

[0112] In one embodiment of the present application, the control method of the starting battery further includes:

[0113] According to the working condition data of each battery cell of the starting battery, the battery cell corresponding to the standby charge capacity is dynamically adjusted.

[0114] In a specific application, the operating condition data of the battery cell may specifically be the number of charge and discharge cycles of each battery cell.

[0115] After the starter battery is started, the charge and discharge control module can obtain the number of charge and discharge cycles of each battery cell in the starter battery, and then dynamically adjust the battery cell corresponding to the standby charge capacity according to the number of charge and discharge cycles of each battery cell.

[0116] In the embodiment of the present application, the number of charge and discharge cycles of the above-mentioned battery cell may be the number of charge and discharge cycles used in the historical use period of the battery cell, or may be the remaining number of charge and discharge cycles available.

[0117] In an embodiment of the present application, the number of charge and discharge cycles of the above-mentioned battery cell is taken as the number of charge and discharge cycles used in the historical usage period of the battery cell. When determining the battery cell corresponding to the reserve charge capacity, the battery cell with a larger number of charge and discharge cycles can be set as the battery cell corresponding to the reserve charge capacity.

[0118] Specifically, the multiple cells of the starting battery can be sorted from large to small, or from small to large according to the number of charge and discharge cycles, and then the number of cells with a capacity greater than the standby charge capacity and the capacity of each cell can be determined, thereby determining the target cell, that is, the cell corresponding to the standby charge capacity.

[0119] In some embodiments, the operating condition data of each battery cell may specifically be a battery health coefficient, and the battery cell corresponding to the reserve charge capacity is determined according to the battery health coefficient.

[0120] Among them, the battery health factor usually refers to the percentage of the current capacity of the battery to the factory capacity, that is, the battery's state of health (SOH).

[0121] In the embodiment of the present application, the battery cell with a smaller battery health coefficient can be set as the battery cell corresponding to the reserve charge capacity.

[0122] Specifically, the multiple cells of the starting battery can be sorted from large to small, or from small to large according to the battery health coefficient, and then the number of cells with a capacity greater than the standby charge capacity can be determined according to the capacity of the standby charge capacity and the capacity of each cell, thereby determining the target cell, that is, the cell corresponding to the standby charge capacity.

[0123] It should be noted that the control method of the starter battery provided in the embodiment of the present application can also dynamically adjust the battery cells corresponding to each battery capacity area according to the number of charge and discharge cycles of the battery cells of the starter battery and / or the above-mentioned battery health factor.

[0124] Since the actual available capacities of different battery cells are different during actual applications, when determining the battery cells corresponding to different battery capacity regions, the division results of the battery cells corresponding to the battery capacity regions may be adjusted according to the actual available capacities of the battery cells.

[0125] In a specific application, it is assumed that the battery capacity area of ​​the starting battery is divided into the above-mentioned first capacity and the above-mentioned standby charge capacity, and the standby charge capacity corresponding cells are determined to be cells C1 to Cm according to the number of charge and discharge cycles of each cell, and the first capacity corresponding cells are cells Cm+1 to CN. After adding the actual available capacities of cells C1 to Cm together, it is found that the capacity exceeds the standby charge capacity, then the cell with the largest actual available capacity among cells C1 to CM (assuming it is cell Cj), and the cell with the largest number of charge and discharge cycles (assuming it is cell Ci) is selected from Cm+1 to CN, and then the actual available capacity of cell Ci is compared with the actual available capacity of cell Cj. If the actual available capacity of cell Ci is less than the actual available capacity of cell Cj, then cell Ci can be set to the cell corresponding to the standby charge capacity, and Cj can be set to the cell corresponding to the first capacity; if the actual available capacity of cell Ci is greater than or equal to the actual available capacity of cell Cj. If the actual available capacity of battery cell Ck is less than that of battery cell Cj, the battery cell Ck can be set as the battery cell corresponding to the standby charge capacity, and the battery cell Cj can be set as the battery cell corresponding to the first capacity; if the actual available capacity of battery cell Ck is greater than or equal to the actual available capacity of battery cell Cj, the original division result is not changed, and so on, so that the actual available capacity of the battery cell corresponding to the standby charge capacity is closer to the capacity corresponding to the standby charge capacity.

[0126] In some embodiments, it is assumed that the battery capacity region of the starting battery is divided into the above-mentioned first capacity and the above-mentioned standby charge capacity, and the standby charge capacity corresponding cells are determined to be cells C1 to Cm according to the battery health coefficient of each cell, and the first capacity corresponding cells are cells Cm+1 to CN. After adding the actual available capacities of cells C1 to Cm together, it is found that the capacity exceeds the standby charge capacity, then the cell with the largest actual available capacity among cells C1 to CM (assuming it is cell Cj), and the cell with the smallest battery health coefficient (assuming it is cell Ci) is selected from Cm+1 to CN, and then the actual available capacity of cell Ci is compared with the actual available capacity of cell Cj. If the actual available capacity of cell Ci is less than the actual available capacity of cell Cj, then cell Ci can be set as the cell corresponding to the standby charge capacity, and Cj can be set as the cell corresponding to the first capacity; if the actual available capacity of cell Ci is greater than or equal to the actual available capacity of cell Cj, If the actual available capacity of cell Ck is less than that of cell Cj, cell Ck can be set as the cell corresponding to the standby charge capacity, and cell Cj can be set as the cell corresponding to the first capacity; if the actual available capacity of cell Ck is greater than or equal to the actual available capacity of cell Cj, the original division result is not changed, and so on, so that the actual available capacity of the cell corresponding to the standby charge capacity is closer to the capacity corresponding to the standby charge capacity.

[0127] From the above, it can be seen that an embodiment of the present application provides a control method for a starting battery, wherein the battery capacity of the starting battery includes a backup charge capacity. When the starting battery is in an abnormal discharge state, the starting battery can enter a backup charge dormant state by closing the battery area corresponding to the backup charge capacity. The closed backup charge capacity will no longer discharge under the abnormal discharge state, and can therefore be used as a protective margin for the starting battery under the abnormal discharge state, thereby reducing the over-discharge of the battery.

[0128] See also Figure 6 , Figure 6 FIG. 1 is a schematic diagram showing an implementation flow of a method for controlling a starting battery provided by another embodiment of the present application. Figure 6 As shown, the above method may specifically include the following steps:

[0129] S13: When it is detected that the abnormal discharge state of the starter battery is released, the battery area corresponding to the backup charge capacity is turned on to release the backup charge dormant state of the starter battery.

[0130] In a specific application, when it is detected that the abnormal discharge state is released, the charge and discharge control module of the starting battery as mentioned above can first determine the battery area corresponding to the reserve charge capacity, and then turn on the charge and discharge path of the battery cell corresponding to the battery area, thereby turning on the battery area corresponding to the reserve charge capacity.

[0131] In a specific application, the abnormal discharge state may be released when the discharge current of the starter battery falls back to within a maximum discharge threshold, or when the starter battery stops discharging, or when a reset operation instruction is received.

[0132] In a specific application, the charge and discharge control module may close a switch controller or a switch tube in the charge and discharge circuit of the battery cell corresponding to the reserve charge capacity, thereby conducting the charge and discharge circuit of the battery cell corresponding to the reserve charge capacity.

[0133] In a specific application, the above-mentioned reset operation instruction can be an instruction generated by the starting battery when it receives a reset operation input by the user. For example, the user can input the reset operation by long pressing the reset key, or the user can input the reset operation through the corresponding reset control in the interactive interface provided by the starting battery, such as clicking the reset control and confirming its operation.

[0134] From the above, it can be seen that the control method of the starting battery provided in the embodiment of the present application can connect the battery area corresponding to the reserve charge capacity after the abnormal discharge state of the starting battery is released, so that the starting battery can use the battery area corresponding to the reserve charge capacity to perform other charging and discharging operations, thereby improving the practicality of the starting battery.

[0135] The present application also provides a control device for a starter battery. The control device for the starter battery can be provided in the above-mentioned starter battery and can correspond to the charge and discharge control module 11 in the above-mentioned starter battery embodiment. Figure 7 , Figure 7 The control device of the starting battery provided in the embodiment of the present application may include an acquisition module 71 and a control module 72 .

[0136] The acquisition module 71 is used to determine the target capacity area according to the current working condition requirements.

[0137] The control module 72 is used to use the target capacity area to perform the charging and discharging operations corresponding to the current operating condition requirements.

[0138] In some implementations, the control module 72 may be specifically used for.

[0139] In some implementations, the control device of the starter battery may further include a region adjustment module, which is used to determine the battery cell corresponding to each capacity region according to the number of charge and discharge cycles of each battery cell of the starter battery.

[0140] It should be understood that Figure 7 In the structural block diagram of the starting battery control device shown, each module is used to execute Figures 5 and 6 The steps in the corresponding embodiments will not be repeated here.

[0141] From the above, it can be seen that the control device of the starting battery provided in the embodiment of the present application can also make the starting battery enter the standby charge dormant state by closing the battery area corresponding to the standby charge capacity when the starting battery is in an abnormal discharge state. The closed standby charge capacity will no longer discharge under the abnormal discharge state, and can therefore serve as a protective margin for the starting battery under the abnormal discharge state, thereby reducing the over-discharge of the battery.

[0142] An embodiment of the present application also provides a vehicle, which may include the starting battery described in any of the above embodiments.

[0143] The embodiment of the present application also provides an electronic device, Figure 8 is a structural block diagram of an electronic device provided by another embodiment of the present application. Figure 8 As shown, the electronic device 8 of this embodiment includes: a processor 80, a memory 81, and a computer program 82 stored in the memory 81 and executable by the processor 80, such as a program for generating a method for an evaluation report. When the processor 80 executes the computer program 82, the steps in each embodiment of the above-mentioned battery management method are implemented, such as Figure 5 Alternatively, the processor 80 implements the above when executing the computer program 82 Figure 1 The functions of each module in the corresponding embodiment are, for example, Figure 7 For details on the functions of the units 71 to 72 shown, please refer to Figure 7 Related description in the corresponding embodiment.

[0144] Exemplarily, the computer program 82 may be divided into one or more modules, one or more modules are stored in the memory 81, and are executed by the processor 80 to complete the present application. One or more modules may be a series of computer program instruction segments that can complete specific functions, and the instruction segments are used to describe the execution process of the computer program 82 in the electronic device 8. For example, the computer program 82 may be divided into various unit modules, and the specific functions of each module are as described above.

[0145] The electronic device 8 may include, but is not limited to, a processor 80 and a memory 81. Those skilled in the art will appreciate that Figure 8It is only an example of the electronic device 8 and does not constitute a limitation of the electronic device 8. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.

[0146] The processor 80 may be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The memory 81 may be an internal storage unit of the electronic device 8, such as a hard disk or memory of the electronic device 8. The memory 81 may also be an external storage device of the electronic device 8, such as a plug-in hard disk, a smart memory card, a flash memory card, etc. equipped on the electronic device 8. Furthermore, the memory 81 may include both an internal storage unit of the electronic device 8 and an external storage device.

[0147] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0148] An embodiment of the present application provides a computer program product. When the computer program product runs on an electronic device, the electronic device can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0149] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the device / electronic device, a recording medium, a computer memory, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), an electric carrier signal, a telecommunication signal, and a software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0150] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0151] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0152] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0153] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0154] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for controlling a starting battery, characterized in that: Applied to a starting battery, the starting battery includes a reserve charge capacity, and the control method of the starting battery includes: Acquiring operating condition data of the starting battery; When it is determined according to the working condition data of the starting battery that the starting battery is in an abnormal discharge state, the battery area corresponding to the backup charge capacity is closed to enter a backup charge dormant state.

2. The method for controlling a starting battery according to claim 1, characterized in that: When it is determined according to the working condition data of the starting battery that the starting battery is in an abnormal discharge state, closing the battery area corresponding to the standby charge capacity to enter a standby charge dormant state includes: Determine the battery cell corresponding to the standby charge capacity; The charge and discharge circuit of the battery cell corresponding to the reserve charge capacity is closed.

3. The method for controlling a starting battery according to claim 1 or 2, characterized in that: After obtaining the operating condition data of the starting battery, the method further includes: The battery cell corresponding to the standby charge capacity is dynamically adjusted according to the operating condition data of each battery cell of the starter battery.

4. The method for controlling a starting battery according to claim 3, characterized in that: The working condition data of the battery cell is the number of charge and discharge cycles of each battery cell, and the battery cell corresponding to the standby charge capacity is dynamically adjusted according to the working condition data of each battery cell of the starter battery, including: Determining the number of charge and discharge cycles of each of the battery cells; The battery cell corresponding to the standby charge capacity is determined according to the number of charge and discharge cycles of each of the battery cells and the capacity of the standby charge capacity.

5. The method for controlling a starting battery according to claim 3, characterized in that: The working condition data of the battery cell is a battery health coefficient of each battery cell, and dynamically adjusting the battery cell corresponding to the standby charge capacity according to the working condition data of each battery cell of the starting battery includes: Determining the battery health factor of each of the battery cells; The battery cell corresponding to the standby charge capacity is determined according to the battery health coefficient of each of the battery cells and the capacity of the standby charge capacity.

6. The method for controlling a starting battery according to any one of claims 1 to 5, characterized in that: In the case where it is determined according to the working condition data of the starting battery that the starting battery is in an abnormal discharge state, after the battery area corresponding to the standby charge capacity is closed to enter the standby charge dormant state, the method further includes: When it is detected that the abnormal discharge state of the starter battery is released, the battery area corresponding to the backup charge capacity is turned on to release the backup charge dormant state of the starter battery.

7. A starting battery, characterized in that: The starting battery comprises: N battery cells, where N is a positive integer greater than 1; some of the battery cells are battery cells corresponding to the reserve charge capacity; A charge and discharge control module is connected in the charge and discharge circuit of the starter battery, and is used to obtain the operating data of the starter battery; and when it is determined according to the operating data of the starter battery that the starter battery is in an abnormal discharge state, the battery area corresponding to the standby charge capacity is closed to enter a standby charge dormant state.

8. The starting battery according to claim 7, characterized in that: The starting battery also includes: The circuit on-off control unit is connected to the charge-discharge control module and is used to control the on-off of the charge-discharge circuit.

9. A vehicle, characterized in that: Comprising a starting battery as claimed in claim 7 or 8.

10. A computer program product, characterized in that When the computer program is run on an electronic device, the corresponding electronic device is enabled to execute the steps of the method according to any one of claims 1 to 6.

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